Prosecution Insights
Last updated: October 02, 2026

Examiner: HEFFINGTON, JOHN M

Tech Center 2100 • Art Units: 2145 2172 2177 2179

This examiner grants 40% of resolved cases

Analysis

John M. Heffington serves as a patent examiner in Tech Center 2100, assigned to Art Unit 2145. The examiner has 436 resolved cases and an allowance rate of 39.9 percent. This rate indicates a challenging prosecution environment where fewer than half of the applications result in a grant. The 436 resolved cases offer a robust dataset for analyzing the examiner's performance in Tech Center 2100.

The interview lift for this examiner is 30.0 percent. This is a high lift, suggesting that interviews are a very effective tool for overcoming rejections. While the baseline allowance rate is 39.9 percent, the 30.0 percent lift indicates that direct engagement with the examiner can significantly improve the chances of success, making it a recommended strategy for practitioners in Art Unit 2145.

The median days to allowance for this examiner is 1863. This is a very long pendency, indicating that reaching a grant requires a substantial time commitment. Given the 1863 day median and the 39.9 percent allowance rate, the 30.0 percent interview lift is a critical factor for applicants seeking to navigate this difficult and lengthy prosecution process.

Written from this page's own data; every figure is computed from USPTO records and verified before publication.

Performance Statistics

39.9%
Allow Rate
-15.1% vs TC avg
475
Total Applications
+30.0%
Interview Lift
1863
Avg Prosecution Days
Based on 436 resolved cases, 2023–2026

Rejection Statute Breakdown

10.1%
§101 Eligibility
16.3%
§102 Novelty
65.2%
§103 Obviousness
5.8%
§112 Clarity

Currently Pending Office Actions

App #TitleStatusAssignee
17237252 SYSTEMS AND METHODS FOR PART TRACKING USING MACHINE LEARNING TECHNIQUES Final Rejection ILLINOIS TOOL WORKS INC.
16754710 Notification Handling Method and Electronic Device Final Rejection Huawei Technologies Co. , Ltd.
17233374 USER EQUIPMENT REPORTING FOR UPDATING OF MACHINE LEARNING ALGORITHMS Non-Final OA QUALCOMM Incorporated
17793410 EQUIPMENT SERVER, DEVICE SERVER, COMMUNICATION SYSTEM, AND STORAGE MEDIUM STORING MESSAGE Non-Final OA Mitsubishi Electric Corporation
17209782 Model Decisions Based On Speculative Execution Non-Final OA Amazon Technologies, Inc.
17410387 USING DATA REDUCTION TO ACCELERATE MACHINE LEARNING FOR NETWORKING Final Rejection Microsoft Technology Licensing, LLC
17347205 AUTOMATED FINE-TUNING AND DEPLOYMENT OF PRE-TRAINED DEEP LEARNING MODELS Final Rejection MICROSOFT TECHNOLOGY LICENSING, LLC.
17644900 SHIELDED SUPERCONDUCTING QUBIT WITH IMPROVED COHERENCE Non-Final OA International Business Machines Corporation
18411965 METHOD AND APPARATUS FOR DYNAMICALLY ORGANIZING A TREE STRUCTURE Non-Final OA ADP, Inc.
17501003 METHOD, DEVICE AND STORAGE MEDIUM FOR TRAINING A DEEP LEARNING FRAMEWORK Non-Final OA BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
17645122 DISTRIBUTED QUANTUM COMPUTING SYSTEM Non-Final OA Optum Services (Ireland) Limited
17049032 CONVOLUTIONAL NEURAL NETWORK Final Rejection HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
18000159 TIME INTENSITY DOMINANCE OF SENSATION (TIDS) Non-Final OA Cargill, Incorporated
15885498 FEEDBACK SYSTEM AND METHOD FOR TREATMENT PLANNING Final Rejection Varian Medical Systems International AG
16719574 DATAVIEW DETAIL PANE WITH A SINGLE PANE OF GLASS Non-Final OA NetBrain Technologies, Inc.
17691493 FLEXIBLE INITIALIZER FOR ARBITRARILY-SIZED PARAMETRIZED QUANTUM CIRCUITS Non-Final OA Zapata Computing, Inc.

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